Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Handsfree Phone Device

a phone device and hand-free technology, applied in the direction of substation equipment, electrical equipment, interconnection arrangements, etc., can solve the problems of increased cost, impaired phone communication quality of the phone terminal, and sometimes howling phenomena, so as to reduce the influence of disturbance noise and improve the quality of the

Inactive Publication Date: 2015-10-08
HOSIDEN CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a phone device that can be used without impairing phone communication quality. It is designed to be cost-effective. The phone device uses frequency modulation to reduce the influence of noise and echo cancellation to ensure that the voice signal is transmitted without quality degradation. The technical effects of the invention make it possible to have a high-quality phone conversation even in weak voice signal situations.

Problems solved by technology

With this technique; however, when the phone terminal receives a call and the speech voice is outputted from the speaker included in the car-mounted handsfree device, a howling phenomenon can sometimes occur when this speech voice is inputted to the microphone of the phone terminal.
As a result, the phone communication quality of the phone terminal is impaired.
However, in order to transmit a speech voice from the speaker of the car-mounted handsfree device to the communication interface section, a special cable is needed, thus being a cause for cost increase.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Handsfree Phone Device
  • Handsfree Phone Device
  • Handsfree Phone Device

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

1. First Embodiment

[0026]A handsfree phone device relating to this disclosure has a function of outputting a phone communication by a user via a phone terminal from a speaker included in an informing terminal. Next, a handsfree phone device 1 relating to a first embodiment will be explained. FIG. 1 shows a block diagram schematically showing a configuration of the handsfree phone device 1 relating to the first embodiment. As shown in FIG. 1, the handsfree phone device 1 includes a relay module 20, a first signal line 40, a second signal line 50, and a voice signal transmitting section 32.

[0027]The relay module 20 relays phone communication between a phone terminal 10 and an informing terminal 30. The phone terminal 10 refers to a terminal capable of phone communication. More particularly, this corresponds to a mobile phone, a smart phone, etc. The phone terminal 10, as shown in FIG. 1, includes a microphone 11, a speaker 12, a communication section 13, and a wireless communication s...

second embodiment

2. Second Embodiment

[0049]Next, a second embodiment of the handsfree phone device 1 will be explained. In the foregoing first embodiment, it was explained that the voice signal transmitting section 32 transmits a voice signal based on a received call signal to the relay module 20 via the second signal line 50. The second embodiment differs from the first embodiment in that the voice signal transmitting section 32 transmits a voice signal based on a received call signal to the relay module 20 via the first signal line 40. The rest of the configuration is identical to the first embodiment. Thus, in the following discussion, focus will be placed on the differences therebetween.

[0050]In this embodiment too, the relay module 20 and the informing terminal 30 are connected to each other via the first signal line 40 as a differential signal line of the universal serial bus and the second signal line 50 as an ID signal line of the universal serial bus, and the first data signal and the secon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a handsfree phone device that does not impair the phone communication quality and that can be realized at low costs. The device includes a relay module configured to relay communication between a phone terminal and an informing terminal, a first signal line and a second signal line interconnecting the relay module and the informing terminal, a wired relay section included in the relay module and configured to transmit a received call signal transmitted from the phone terminal to the relay module to the informing terminal via the first signal line, a voice signal transmitting section included in the informing terminal and configured to transmit a voice signal based on the received call signal to the relay module via one of the first signal line and the second signal line, and an echo canceling section included in the relay module and configured to reduce an echo generated when the received call signal outputted from the speaker is inputted to a microphone included in the relay module, with use of the voice signal.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Japanese Patent Application No. 2014-076081 and 2014-108147 filed Apr. 2, 2014 and May 26, 2014, respectively, the disclosures of which are hereby incorporated in their entirety by reference.TECHNICAL FIELD[0002]This disclosure relates to a handsfree phone device configured to output a voice call (communication) by a user using a phone terminal from a speaker included in an informing terminal.RELATED ART[0003]In recent years, in a situation where phone terminals such as mobile phones are widely used, handsfree phone devices have also been employed in view of the concern that if a driver engaged in driving of a vehicle for instance makes a call with holding a phone terminal by hand, this may interfere with the driving operation. As a technique of this type, there is one disclosed in e.g. JP2013-168845A.[0004]A car-mounted handsfree device disclosed in JP2013-168845A includes a speaker and a microphone. W...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): H04M3/00H04M1/60
CPCH04M1/6075H04M3/002H04M1/6083H04M1/6091H04M9/082
Inventor MURAOKA, SHUNJIMIYAZAWA, KIYOSHIYAMANAKA, YOSHIFUMI
Owner HOSIDEN CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com